Does cocoa just leak?
Does cocoa just leak?
- Subject: Does cocoa just leak?
- From: Rosyna <email@hidden>
- Date: Sat, 29 Sep 2001 20:37:36 -0700
I was trying to do a mem test on my app today. First trying to get a
base reading, before anything else occurred. So I have a window with
a pulsing button on it connected to some action. Thats all I have on
it. I launch the app, then go into top to see the mem usage. Ok. Then
I switch back to my app and notice the mem usage goes up. Switch back
to the terminal, mem usage goes back again. Try switching in and out
again, nothing happens. I think, "Oh well, must be a fluke" So I
switch in and out about 15 more times. After about every dozen or so
switches mem usage goes up a few k. And this is with an App that
wasn't doing anything.
To test my class I was doing:
for (i=0;i<5000;i++)
[instance URL];
This causes mem usage to go up about 500k. Thats not too bad, i
guess. I set the URL thats returned to autorelease inside the class.
However, doing:
for (i=0;i<5000;i++)
[[instance URL] path];
Causes the mem usage to go up to 5megs! thats a 4.5meg increase over "base"!
and path is part of NSURL.
Now for the button on my application. Again, I was trying to get a
base mem level. All the button does when clicked is show an
NSOpenPanel. I opened it, mem use skyrocketed (compared to "base")
nearly tripling in value. I closed it to see if I could regain that
mem back, only about a .8 megs was returned. I do understand that it
gives my app an Open Panel to use so It doesn't have to keep loading
it over and over. Understanding that, I opened it and closed it a few
more times, each time all but .01-.05megs was returned to me.
Granted I could be doing something horribly wrong, but the Mem usage
seems odd to me. The above loops were done in awakeFromNib.
--
Sincerely,
Rosyna Keller
Technical Support/Holy Knight/Always needs a hug
Unsanity: Unsane Tools for Insane People